   stack. Understanding pushing and popping requires understanding the
   concept of a matrix stack. The push-matrix fn saves the current
   coordinate system to the stack and pop-matrix restores the prior
-  coordinate system. push-matrix and pop-matrix are used in conjuction
+  coordinate system. push-matrix and pop-matrix are used in conjunction
   with the other transformation methods and may be embedded to control
   the scope of the transformations."
   []

  called again with a new parameter and so should not be called prior
  to every sphere statement, unless you wish to render spheres with
  different settings, e.g. using less detail for smaller spheres or
  ones further away from the camera. To controla the detail of the
  horizontal and vertical resolution independently, use the version of
  the functions with two parameters."
  ([res] (.sphereDetail (current-graphics) (int res)))

     light-specular
     "Sets the specular color for lights. Like fill, it affects only the
  elements which are created after it in the code. Specular refers to
  light which bounces off a surface in a preferred direction (rather
  than bouncing in all directions like a diffuse light) and is used
  for creating highlights. The specular quality of a light interacts
  with the specular material qualities set through the specular and
